COVID-19 Coronavirus prevention instructions on how to avoid contamination when at the construction site, warehouse, office or factory. Our flu prevention signs are useful tools to help protect the health and safety of both staff, students, customers and the public. 60 Mil Styrene hard sign Is Washable and UV resistant. Highly visible 5.5"x 8.5" large size. High contrast yellow & black design. Includes double sided adhesive tape. 4" W x 6" H